论文标题

高阶非倒数载附加滤波器

High-Order Nonreciprocal Add-Drop Filter

论文作者

Li, Hang, Ge, Rui, Peng, Yuchen, Yan, Bei, Xie, Jianlan, Liu, Jianjun, Wen, Shuangchun

论文摘要

拓扑光子学导致了该设备的强大光学行为,这解决了制造缺陷和扰动对设备性能的影响的问题。同时,时间耦合模式理论(T-CMT)已被开发和应用。然而,级联耦合腔(CCC)系统的T-CMT及其相应的高阶滤波器尚未确定。这里基于现有的T-CMT建立CCC系统的T-CMT。通过将CCC与拓扑波导相结合,提出了高阶非重点附加电源过滤器(HONAF)的多功能设计方案。定量分析了空腔的耦合效应与HONAF的传输和过滤性能之间的关系,然后给出了提高过滤器的传输效率和质量因子的方法。基于旋风磁光子晶体和depagonal penrose型光子准晶体的组合,提出了ho​​naf。对HONAF的传输和过滤性能进行了数值分析,这验证了理论预测与数值模拟之间的一致性。建立的CCC系统的T-CMT可以广泛用于耦合谐振器光学波导及其相关系统。设计的HONAF也可以应用于微波通信系统。

Topological photonics have led to the robust optical behavior of the device, which has solved the problem of the influence of manufacturing defects and perturbations on the device performance. Meanwhile, temporal coupled-mode theory (t-CMT) has been developed and applied widely. However, the t-CMT of cascaded coupling cavities (CCC) system and its corresponding high-order filter has yet to be established. Here the t-CMT of CCC system is established based on the existing t-CMT. By combining the CCC with the topological waveguides, a versatile design scheme of the high-order nonreciprocal add-drop filter (HONAF) is proposed. The relationship between coupling effect of cavities and transmission and filtering performance of HONAF is analyzed quantitatively, then a method to improve the transmission efficiency and quality factor of the filter is given. Based on the combination of gyromagnetic photonic crystals and decagonal Penrose-type photonic quasicrystals, a HONAF is proposed. The transmission and filtering performance of the HONAF are numerically analyzed, which verifies the consistency between the theoretical prediction and the numerical simulation. The t-CMT of CCC system established can be widely used in the coupled resonator optical waveguides and their related systems. The designed HONAF can also be applied and compatible to microwave communication system.

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